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Article

Performance Analysis of a H-Darrieus Wind Turbine for a Series of 4-Digit NACA Airfoils

1
Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology, 00-665 Warsaw, Poland
2
Department of Wind Energy, Technical University of Denmark, DK2800 Lyngby, Denmark
3
Institute of Aerodynamics and Gas Dynamics, University of Stuttgart, 70569 Stuttgart, Germany
*
Author to whom correspondence should be addressed.
Energies 2020, 13(12), 3196; https://doi.org/10.3390/en13123196
Received: 24 April 2020 / Revised: 16 June 2020 / Accepted: 16 June 2020 / Published: 19 June 2020
(This article belongs to the Section B2: Wind, Wave and Tidal Energy)
The purpose of this paper is to estimate the H-Darrieus wind turbine aerodynamic performance, aerodynamic blade loads, and velocity profiles downstream behind the rotor. The wind turbine model is based on the rotor designed by McDonnell Aircraft Company. The model proposed here consists of three fixed straight blades; in the future, this model is planned to be developed with controlled blades. The study was conducted using the unsteady Reynolds averaged Navier–Stokes (URANS) approach with the k-ω shear stress transport (SST) turbulence model. The numerical two-dimensional model was verified using two other independent aerodynamic approaches: a vortex model and the extended version of the computational fluid dynamics (CFD) code FLOWer. All utilized numerical codes gave similar result of the instantaneous aerodynamic blade loads. In addition, steady-state calculations for the applied airfoils were also made using the same numerical model as for the vertical axis wind turbine (VAWT) to obtain lift and drag coefficients. The obtained values of lift and drag force coefficients, for a Reynolds number of 2.9 million, agree with the predictions of the experiment and XFOIL over a wide range of angle of attack. A maximum rotor power coefficient of 0.5 is obtained, which makes this impeller attractive from the point of view of further research. Research has shown that, if this rotor were to work with fixed blades, it is recommended to use the NACA 1418 airfoil instead of the original NACA 0018. View Full-Text
Keywords: CFD; k-ω SST; VAWT; airfoil characteristics; aerodynamic wake CFD; k-ω SST; VAWT; airfoil characteristics; aerodynamic wake
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MDPI and ACS Style

Rogowski, K.; Hansen, M.O.L.; Bangga, G. Performance Analysis of a H-Darrieus Wind Turbine for a Series of 4-Digit NACA Airfoils. Energies 2020, 13, 3196. https://doi.org/10.3390/en13123196

AMA Style

Rogowski K, Hansen MOL, Bangga G. Performance Analysis of a H-Darrieus Wind Turbine for a Series of 4-Digit NACA Airfoils. Energies. 2020; 13(12):3196. https://doi.org/10.3390/en13123196

Chicago/Turabian Style

Rogowski, Krzysztof, Martin O.L. Hansen, and Galih Bangga. 2020. "Performance Analysis of a H-Darrieus Wind Turbine for a Series of 4-Digit NACA Airfoils" Energies 13, no. 12: 3196. https://doi.org/10.3390/en13123196

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